/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.streaming.connectors.nifi.examples;
import org.apache.flink.api.common.functions.RuntimeContext;
import org.apache.flink.configuration.ConfigConstants;
import org.apache.flink.streaming.api.datastream.DataStreamSink;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
import org.apache.flink.streaming.connectors.nifi.NiFiDataPacket;
import org.apache.flink.streaming.connectors.nifi.NiFiDataPacketBuilder;
import org.apache.flink.streaming.connectors.nifi.NiFiSink;
import org.apache.flink.streaming.connectors.nifi.StandardNiFiDataPacket;
import org.apache.nifi.remote.client.SiteToSiteClient;
import org.apache.nifi.remote.client.SiteToSiteClientConfig;
import java.util.HashMap;
/**
* An example topology that sends data to a NiFi input port named "Data from Flink".
*/
public class NiFiSinkTopologyExample {
public static void main(String[] args) throws Exception {
StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
SiteToSiteClientConfig clientConfig = new SiteToSiteClient.Builder()
.url("http://localhost:8080/nifi")
.portName("Data from Flink")
.buildConfig();
DataStreamSink<String> dataStream = env.fromElements("one", "two", "three", "four", "five", "q")
.addSink(new NiFiSink<>(clientConfig, new NiFiDataPacketBuilder<String>() {
@Override
public NiFiDataPacket createNiFiDataPacket(String s, RuntimeContext ctx) {
return new StandardNiFiDataPacket(s.getBytes(ConfigConstants.DEFAULT_CHARSET),
new HashMap<String,String>());
}
}));
env.execute();
}
}